Ucal, Meltem
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Name Variants
Meltem, Ucal
Ucal, M.
Ucal,M.
M. Ucal
MELTEM UCAL
Ucal,Meltem
U., Meltem
UCAL, Meltem
UCAL, MELTEM
Ucal, Meltem
U.,Meltem
Ucal, MELTEM
Ucal M.
Meltem UCAL
Meltem Ucal
Ucal, Meltem Şengün
Şengül Ucal, Meltem
Ucal, Meltem Şengün
Şengün Ucal, Meltem
Ucal, M.
Ucal,M.
M. Ucal
MELTEM UCAL
Ucal,Meltem
U., Meltem
UCAL, Meltem
UCAL, MELTEM
Ucal, Meltem
U.,Meltem
Ucal, MELTEM
Ucal M.
Meltem UCAL
Meltem Ucal
Ucal, Meltem Şengün
Şengül Ucal, Meltem
Ucal, Meltem Şengün
Şengün Ucal, Meltem
Job Title
Prof. Dr.
Email Address
msengun@khas.edu.tr
Main Affiliation
Economics
Status
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals Report Points
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Scholarly Output
34
Articles
23
Citation Count
6
Supervised Theses
6
13 results
Scholarly Output Search Results
Now showing 1 - 10 of 13
Article Citation - WoS: 0Citation - Scopus: 0The Nexus Between Migration and Environmental Degradation Based on Fundamental Climate Variables and Extreme Climate Indices for the Mena Domain(Elsevier, 2025) Ucal, Meltem; Demiralay, Zekican; Ucal, Meltem; Kurnaz, M. Levent; EconomicsEnvironmental migration has recently become primary source of population growth and environmental degradation from extreme events has created the environmental refugee concept with a variety of manners affecting lives. For understanding of the environmental degradation impact on migration, a hybrid approach (regional climate modelling, RegCM4.4 and statistical modelling, ordered logit) has been applied for 65 countries in the Middle East and North Africa (MENA) for the periods of 2021-2050 and 2051-2080. It is aimed to examine how climate change affect migration by applying fundamental climate variables (i.e., maximum temperature, minimum temperature, and precipitation) and the control variables (i.e., the hot days, the tropical nights, and the dry days) in the MENA. While key findings indicate an increase in the minimum temperatures (Tmin) in future in all populous cities, the water amount may further decrease in the mid-latitude and Mediterranean with temperate climates due to precipitation change. While it may pose a high risk in the regions having experienced extreme temperatures e.g., tropical nights (Tn), it may further adversely affect ones not having experienced extremes. Considering statistically significant positive relationship between Tmin, and net migration rate (NMIG), and negative relationship between precipitation and NMIG, it may encourage migration to cooler regions.Book Part Citation - Scopus: 5Energy and Sustainable Development From Perspective of Energy Poverty(Springer, 2021) Ucal, Meltem Şengün; Ucal, Meltem; EconomicsEnd of poverty, the number one Sustainable Development Goal, focuses on ending all kinds of poverty all over the world. The elimination of all forms of poverty continues to be the biggest problem facing humanity today. The most important problems that have been encountered since the beginning of the energy use are the increasing risk of deterioration of energy supply, energy production and energy poverty. The problem of energy poverty among them is widely mentioned in the literature. In general, the studies on the subject focus on how the problem is defined worldwide, its size, its consequences, the obstacles to the elimination of the problem and some solution opportunities. The term “energy poverty” can refer to two different socio-economic issues, depending on the geographical scope of its application: energy affordability in higher income and developed states; inadequate access to “modern” energy services in most low income or developing countries”. Poor people pay a high price for the energy they use, either in cash or by labor. In addition, poor households spend more on energy than wealthy people, not only because their income is much smaller, but also because the fuels and equipment they use are much less efficient than modern fuels and equipment. No country has been able to diminish energy poverty to a great extent without increasing energy use. Decreasing the global inequality in energy is key to reducing income, gender and an inequality in other dimensions such as rural/urban income gaps. From this perspective, the importance of the relationship between energy poverty and sustainable development will be discussed by making comparisons by taking the country cases into consideration in the context of energy efficiency and renewable energy. The regional understanding of these concepts will also be discussed in this context.Article Citation - WoS: 30Citation - Scopus: 37Turkish Public Preferences for Energy(Elsevier Science, 2018) Ediger, Volkan S.; Kirkil, Gökhan; Kirkil, Gökhan; Ediger, Şevket Volkan; Çelebi, Emre; Ucal, Meltem; Ucal, Meltem Şengün; Kentmen-Cin, Çiğdem; Economics; Industrial Engineering; Civil EngineeringPublic concern over energy supplies prices sustainability and efficiency has emerged as a major issue around the world. Yet most of what we know regarding public opinion on energy comes from North America and Europe. This paper presents the results from the 2016 Turkish Public Preferences for Energy Survey which included 1204 respondents and examined Turkish residents' household energy consumption energy policy preferences and environmental concerns. The main findings were that Turkish citizens consider natural gas and electricity highly expensive view dependence on imported energy as Turkey's most pressing energy challenge and recognize the problem of climate change. This lends public support for wind and solar power but at the same time energy issues and the environment policies of political parties do not affect voting choices and political preferences.Article Citation - WoS: 18Citation - Scopus: 18A Dynamic Game Theory Model for Tourism Supply Chains(Sage Publications, 2021) Keskin, Kerim; Keskin, Kerim; Ucal, Meltem Şengün; Ucal, Meltem; EconomicsThis article contributes to the game-theoretic analysis of tourism supply chains. We start with a baseline model including three types of agents: (a) one theme park, (b) multiple accommodation providers, and (c) multiple tour operators. We investigate the strategic dynamics (i.e., collaboration and competition) embedded in a market with two different tourism supply chains, and then we extend our model to an infinite-horizon repeated game arguing that agents would face the same decision problem in each week of every holiday season in each year. We show how agents in a tourism supply chain end up with higher profits in any given period of a repeated game compared with their profits in the static version of the game.Article Citation - WoS: 11Citation - Scopus: 15Female Employment Status: a Survey Analysis of Selected Member States of the Arab League(Springer Heidelberg, 2019) Ucal, Meltem Şengün; Ucal, Meltem; Günay, Simge; EconomicsLow female labor force participation is a conspicuous issue in the literature. Based on this information, women's perspectives of the determinants of female labor force participation in 13 member states of the Arab League in relation to the region's patriarchal culture and conservative social norms are discussed in this paper. Probit modelling is applied to the sixth wave of the World Values Survey data (2010-2014), in order to examine the relationship between female labor force participation and socio-cultural variables, such as women's perceptions about the importance of religion, the priority of religion compared with science, the importance of traditions for women, the priority of men concerning the right to a job and the importance of a job for women's independence, and personal characteristics, such as women's social class, marital status, number of children, educational level and age. The results indicate that the number of children and the importance given to tradition and religion by women are obstacles to increasing their labor force participation.Conference Object Citation - WoS: 0Citation - Scopus: 0Parametric Bootstrap Model Selection Criterion With in Linear Model Compared To Other Criteria(INT INST Informatics & Systemics, 2005) Ucal, Meltem Şengün; Ucal, Meltem; EconomicsThe most important stage of econometrics estimation is the in model set up. The model set up has the best prediction ability and is therefore suitable for econometrics estimation. Between the dependent variable Y and other independent explanatory variables X must be a strong relationship in econometrics estimation. However all explanatory variables cannot be related to dependent variable Y. This condition creates a regression problem. A similar problem appears in variable selection equivalent to problem in model selection. The most suitable faultless model is provided by correct and suitable selection of variables. There exist many variable/model selection procedures the where the necessary relationship between X and Y is linearArticle Citation - WoS: 2Citation - Scopus: 3A Primary Econometric Approach To Modeling and Forecasting the Demand for Fuelwood in Turkey(Wfl Publ, 2012) Kayacan, Bekir; Ucal, Meltem; Ucal, Meltem Şengün; Öztürk, Atakan; Bali, Ramazan; Koçer, Sacit; Kaplan, Erdem; EconomicsA primary econometric approach is presented to understand the determinants of variation in national demand for domestically-produced fuelwood in Turkey. Also included in this study is a demand forecast for fuelwood based upon the econometric model proposed in this study. Being in multiplicative form originally, the proposed model is converted in to a double-log or log-linear form, for the ease of immediate interpretation of the parameter estimates in respect of elasticities. Parameter estimation is based on a panel and time series data set that belongs to the 15-year period between 1995 and 2009. The demand forecast presented has a horizon of 7 years beyond 2009. Major findings of the research include: 1) fuelwood demand in Turkey appears to conform to the law of demand with an inverse price-demand relationship; 2) fuelwood demand is notably price-sensitive with relatively high price elasticity; 3) fuelwood does not appear to be a related (complementary or substitute) good with coal and natural gas; and 4) fuelwood in Turkey is likely to be a "normal good" in respect of demand-income relationship. Meanwhile, based upon the proposed model here, fuelwood demand in Turkey may reasonably continue to show a downward trend till a level of 5 million m(3) per annum, which is an about 50% reduction from the demand level in 1995. Further research is particularly needed for Turkey in view of the rapidly changing socio-economic profile of rural and urban population, which is being reflected in the demand for energy from wood in forms besides wood in the raw.Article Citation - WoS: 1Effects of Gender on Credit Card Usage Among University Students in Turkey(Academic Journals, 2011) Ucal, Meltem Şengün; Ucal, Meltem; O'Neil, Mary Lou; Louıse Şimşek, Mary; Cankaya, Serkan; Economics; Political Science and International RelationsIn recent years much has been written about credit card usage among university students. Despite a vast number of studies little has been written about credit card usage among university students in developing countries. This research surveyed university students in Turkey in an attempt to understand their uses of credit cards. In particular we examined the impact of gender on credit card use. The literature on the impact of gender on credit card usage is a bit unsettled and this study seeks to add another dimension to the research in this area. Using both parametric and nonparametric measures we sought to isolate gender and tested whether or not it affects the ways that young people in Turkey use credit cards. The importance of this research centers on the portrait it provides of credit card usage among young people in a developing country as well as to pointing the factors that may influence future credit card use.Article Citation - WoS: 3Citation - Scopus: 3Modeling and Forecasting the Demand for Industrial Roundwood in Turkey: a Primary Econometric Approach(Wfl Publ, 2012) Kayacan, Bekir; Ucal, Meltem; Ucal, Meltem Şengün; Öztürk, Atakan; Bali, Ramazan; Koçer, Sacit; Kaplan, Erdem; EconomicsThis study is a primary econometric analysis to explore the factors explaining the changes in industrial roundwood demand in Turkey. The study also includes demand forecasts based on the econometric models proposed herein. We constructed two separate econometric models: one for national demand for domestically-produced saw log, and the other for national demand for domestically-produced non-sawlog industrial roundwood. Models were originally designed in multiplicative form. The original models are then converted into the log-linear form so that the relevant coefficients of the regression equations would immediately reflect the elasticities. Estimation of the model parameters are based on a panel data set of fifteen years (1995-2009) by twenty seven regional forest directorates in the country. In accordance with the maxim of less than the half of the 15 years period of data set, the demand forecasts are made for seven years beyond 2009. In view of the results, the explanatory power of the proposed models can arguably be deemed satisfactory especially considering the lack of earlier studies of this scale and scope. This consequently increases the credibility of the demand projections. Notwithstanding signs of the estimated parameters of the models are for the most part congruent with those expected in light of the economic theory and practice, some intriguing results are obtained. Perhaps most notably, while the sign of the estimated price elasticity of sawlog demand occurred unexpectedly positive, the variation in sawlog demand is explained to a considerable extent by the variation in the price of imported sawlog, hence an expected cross elasticity. Also notable is that the price of imported "fuelwood" holds a positive relationship with the national demand for domestic non-sawlog imdustrial roundwood, which is an expected cross elasticity since virtually all of the imported "fuelwood" is used as raw material for industry (e.g. chip and fiberboard industry). Finally, both models suggest overall boost in demand: yet an upper bound of 4.5 million m(3) for national demand for domestically-produced sawlog, and of 15 million m(3) for national demand for domestically-produced non-sawlog industrial roundwood can be expected by 2016.Article Citation - WoS: 3Citation - Scopus: 3Is Precarity a Fate for Women in Türkiye? Rethinking Energy Poverty From a Gender Perspective(Springer Heidelberg, 2023) Ucal, Meltem; Ucal, Meltem; Gunay, Simge; EconomicsEnergy poverty is a challenging issue that hampers economic and sustainable development and lowers people's standard of living. While trying to understand energy poverty, it is imperative to focus on the disadvantaged individuals mentioned in the literature, as they are often most vulnerable to the problem. Focusing on them is essential to achieving sustainable development goals, especially in developing countries, particularly regarding poverty, energy poverty, and gender equality. Therefore, the paper aims to examine the impact of economic precarity on working-age females' energy poverty perceptions using 2018-2020 TURKSTAT-SILC pooled cross-sectional data. Our findings from the bivariate probit, multivariate probit and Bayesian bivariate probit models suggested that economic precarity has a disruptive role on females' energy poverty perceptions. Furthermore, inefficient energy use is an important factor in influencing females' perceptions of energy poverty. Females' inability to pay required housing expenses increases their perceived energy poverty. Therefore, social-welfare policies and energy policies should be considered together by the policymakers to resolve females' energy poverty problem to achieve a more sustainable future.